What are the requirements for a DC resistance tester when conducting transformer tests?

What are the requirements for a DC resistance tester when conducting transformer tests? manufacturer

What are the requirements for a DC resistance tester when conducting transformer tests? price

What are the requirements for a DC resistance tester when conducting transformer tests? model

The DC resistance test of transformer windings is a test item for transformers after handover, major repairs, and changes to tap changers. Under normal circumstances, measuring the DC resistance of transformer windings and high-power inductive devices using traditional methods such as bridge method and voltage drop method is a time-consuming and labor-intensive task. In order to change this situation, shorten measurement time, and reduce the workload of testers, a DC resistance rapid tester has been developed.

It adopts a new power technology, which has the characteristics of fast measurement, compact size, easy use, and high measurement accuracy. It is an ideal device for measuring the DC resistance of transformer windings and high-power inductive equipment.

Basic principle: The XGZR type DC resistance rapid tester adopts a typical four wire measurement method. In order to improve the accuracy of measuring resistance, especially low resistance. The programmable constant current source, programmable preamplifier, and A/D converter constitute the main body of the measurement circuit. The central control unit applies a constant and high-precision current to the external load under test by controlling the constant current source, and then processes the obtained data (including test voltage, current test current, etc.) to obtain the actual resistance value. This instrument can store 255 test data and print all stored test data. The data stored during instrument reset and power failure will not be lost. Main technical characteristics, project technical indicators and parameter notes: Test current 1mA, 10mA, 1A, measurement range 1mA1 μ Ω~20k Ω 10mA1 μ Ω~2k Ω 1A: 1 μ Ω~20 Ω.

The requirements for using a DC resistance tester in a UV accelerated weather resistance testing machine for transformer testing are as follows: DC resistance tester for six axis key life testing machine for transformer testing. The requirements for using a DC resistance tester for transformer testing depend on the size of the transformer. If the transformer capacity is slightly larger, the current required is usually 10A. For small transformers, only the following is needed. But for transformers, the higher the current, the faster the testing speed. How do you choose the product? LYZGY-III series transformer DC resistance tester produced by Shanghai Wangxu Electric Co., Ltd., LYZGY-III ⑴ A - to LYZGY-III ⑸ 0A optional: 1. Usage conditions: ambient temperature: 0 ℃~40 ℃; Relative temperature: ≤ 85% RH. 2. Measurement range: The machine is equipped with 6 measuring ranges, namely: 1 μ Ω～ 20m Ω; 20m Ω～ 200m Ω; 0.2 Ω～ 2 Ω; 2Ω～20Ω； Requirements for conducting transformer experiments with a 20 Ω~20 DC resistance tester.
The requirements for conducting transformer experiments with a DC resistance tester depend on the size of the transformer. If the transformer capacity is slightly larger, the current required is usually 10A. For small transformers, only the following is needed. But for transformers, the higher the current, the faster the testing speed. How do you choose the MMG10 high-temperature and high-speed friction and wear testing machine? The LYZGY-III battery pack flipping test machine series produced by Shanghai Wangxu Electric Co., Ltd. includes a transformer leather testing machine, a DC resistance tester, a LYZGY-III ⑴ A - plastic adhesive tape testing machine, a material testing machine, and a LYZGY-I cardboard box breaking test machine II ⑸ 0A. Optional:

1. Usage conditions: Environmental temperature: 0 ℃~40 ℃; Relative temperature: ≤ 85% RH.

2. Measurement range: The machine is equipped with 6 measurement ranges, namely: 1 μ Ω～ 20m Ω; 20m Ω～ 200m Ω; 0.2 Ω～ 2 Ω; 2Ω～20Ω； 20Ω～200Ω； 200 Ω~2k Ω.

3. Measurement accuracy: 0.2 level.

4. High resolution: 1 μ Ω. Sponge reciprocating impact fatigue testing machine

5. Constant current source tensile and compressive testing machine: 3A (1 μ Ω～ 20m&Om wire bending testing machine ega; 、 20m Ω～ 200m Ω, 0.2 Ω～ 2 Ω); 300mA (2 glass three-point bending tester Ω~20 Ω); 30mA (20&Omega plastic pipe pressure testing machine; ~200 safety shoe withstand voltage testing machine Ω); 3mA (2 foam plastic vertical horizontal combustion tester 0 microcomputer vertical plugging life tester 0 Ω~2k Ω).

6. Working voltage: DC: 11 electronic creep endurance testing machine V~14V; Exchange: 220V.

7 Adhesive tape adhesion testing machine. Power consumption: ≤ 15W. 8. External dimensions: 365mm&ti flue pressure testing machine mes; 330mm Xenon Arc Lamp Weathering Test Machine Tim UV Accelerated Aging Test Machine ES; 180mm.

9. Weight: 5kg (including testing pliers and testing wire).